KR102035464B1 - Program creation apparatus and program creation method in program creation apparatus - Google Patents

Abstract

On the display part 22 which displays the processed shape of the workpiece | work W input by operation of the user input part 20, and the display part 22 on which the processed shape of the workpiece | work W was displayed, the workpiece | work W and A middle fixing point setting unit 36 for setting a predetermined range including a point designated by an operation of the input unit 20 of the user on the cutting line L between the cores C as the middle fixing point F; While the workpiece W is processed on the basis of the input work shape of the workpiece W, the wire discharge processing machine so that the core C is fixed to the workpiece W at the set core fixing point F And a program generator 38 for generating a program for controlling the 12).

Description

PROGRAM CREATION APPARATUS AND PROGRAM CREATION METHOD IN PROGRAM CREATION APPARATUS

The present invention relates to a program generating apparatus for generating a program for controlling a wire discharge machine and a program generating method in the program generating apparatus.

Japanese Patent Laid-Open No. 5269258 discloses a machining program generating device for generating a machining program such that a middle magnetic fixing point is designated on a CAM and a middle magnetic fixing machining is performed at the designated middle magnetic fixing point.

Japanese Laid-Open Patent Publication No. 2013-144335 discloses a machining program generating device for setting a point at which a core is fixed and the number thereof based on the weight and the center of gravity calculated from the shape data of the core. .

In the technique of Japanese Patent Laid-Open No. 5269258, the middle magnetic fixing point is designated as follows. First, the process shape element which performs core fixing process is designated by a cursor. Next, one of the disadvantages of the designated processing shape element is set as a reference point. And the distance from a reference point to a core fixing point, and the section which performs a core fixing process are input. For this reason, the user has required a lot of effort for designating the middle magnetic fixing point, and the burden on the user was great.

In the technique of Japanese Unexamined Patent Publication No. 2013-144335, since the point where the core is fixed and the number thereof are set based on the weight and the center of gravity calculated from the shape data of the core, the burden on the user is reduced. There exists a possibility that a core fixing point may be set in the point which is not suitable for core fixing, such as the point where a process shape is complicated.

This invention is made | formed in order to solve the said problem, and an object of this invention is to provide the program generation apparatus in the program generation apparatus which can easily set a middle magnetic fixed point in an appropriate point, and a program generation apparatus.

According to a first aspect of the present invention, there is provided a program generating device for generating a program for controlling a wire electric discharge machine, comprising: a display unit for displaying a machining shape of a workpiece input by an operation of a user input unit, and a display unit for displaying a machining shape of the workpiece. On the cutting line between the workpiece and the core generated by the machining of the workpiece, a predetermined range including a point designated by the operation of the input unit of the user to a core fixing point for fixing the core to the workpiece. The wire discharge processing machine is controlled so that the core is fixed to the workpiece at the set core fixation point while performing machining of the workpiece based on the set core fixing point setting unit and the input work shape of the workpiece. And a program generation unit for generating a program.

According to a second aspect of the present invention, there is provided a program generation method in a program generation device for generating a program for controlling a wire discharge machine, wherein the program generation device displays a processed shape of a workpiece input by an operation of an input unit of a user. A predetermined range including a point designated by the operation of the input unit of the user on a cutting line between the workpiece and the core generated by the machining of the workpiece on the display portion on which the machining shape of the workpiece is displayed. And a core fixing point setting step of setting the core to a core fixing point for fixing the core to the workpiece, and processing the workpiece based on the input machining shape of the workpiece, and at the set of the core fixing point. To control the wire discharge machine so that the core is fixed to the workpiece And a program generation step of generating a program.

According to the present invention, the core fixing point can be easily set at an appropriate point.

The above objects, features, and advantages will be readily understood from the following description of the embodiments described with reference to the accompanying drawings.

1 is a block diagram showing a program generating device and a wire electric discharge machine of the first embodiment.
FIG. 2 is a flowchart showing the flow of processing performed in the processing calculating section of the first embodiment.
It is a figure which shows the example of the process shape of the workpiece | work and the shape of a core which are displayed on the display part of 1st Embodiment.
4 is a diagram illustrating a state in which a midpoint is set on a workpiece line of a workpiece displayed on the display unit of the first embodiment.
FIG. 5: is a figure which shows the example which sets a core fixing point on the process line of the workpiece | work displayed on the display part of 1st Embodiment.
It is a figure which shows the example of the display of the display part of the state of the setting of the core fixing point of 1st Embodiment being complete | finished.
FIG. 7: A is a NC program which fixes a core to a workpiece | work while processing the workpiece | work of the left side of FIG. 5 of 1st Embodiment. FIG. 7: B is NC program which fixes the core to a workpiece | work while processing the workpiece | work of the right side of FIG. 5 of 1st Embodiment.
8 is a flowchart showing the flow of processing performed in the processing calculating section of the second embodiment.
FIG. 9 is a diagram illustrating a state where a start point and an end point are set on a cutting line of a workpiece displayed on a display unit of a second embodiment. FIG.
FIG. 10: is a figure which shows the example which sets a core fixing point on the process line of the workpiece | work displayed on the display part of 2nd Embodiment.
FIG. 11: is a figure which shows the example of the display of the display part of the state of the setting of the middle magnetic fixing point of 2nd Embodiment being complete | finished.
It is a figure which shows the example of the display of the display part of the state of the setting of the middle magnetic fixing point of 3rd Embodiment being complete | finished.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated through embodiment of this invention. The following embodiments do not limit the invention related to the scope of the claims. All of the combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

[First Embodiment]

[Configuration of Program Generation Device]

1 is a block diagram showing a program generating device 10 and a wire electric discharge machine 12. The program generating device 10 is, for example, a personal computer equipped with a CAM. The program generating apparatus 10 inputs the machining shape of the workpiece | work W (FIG. 3) by a user, and produces | generates the NC program which controls the wire electric discharge machine 12 according to the input workpiece shape. do. In the program generating device 10, the generated NC program is sent to the numerical control device 14 of the wire electric discharge machine 12. In the numerical control device 14, an NC program is executed, and command values for various devices of the machine main body 16 are calculated. The command value is sent from the numerical control device 14 to various devices of the machine main body 16, and the work W is processed by operating the various devices in accordance with the command value.

The program generating device 10 has a main body 18, an input unit 20, and a display unit 22. The main body 18 has a processing operation unit 30 and a storage unit 32. The processing operation unit 30 is composed of a processor, a memory, and the like, and performs various processes and calculations. The storage unit 32 stores an executable file of a CAM, a generated NC program, and the like as a hard disk or the like. The input unit 20 is, for example, a keyboard or a mouse. By operating the input unit 20, the user can input characters, symbols, numbers, and the like, specify a position on the display unit 22, select an icon displayed on the display unit 22, and the like. The display part 22 is a liquid crystal display etc., for example. Characters, symbols, numbers, images, and the like can be displayed on the display unit 22.

The processing calculating unit 30 has a shape creating unit 34, a core fixing point setting unit 36, and an NC program generating unit 38. The shape creating unit 34 creates the shape designated by the user by operating the input unit 20 as the processed shape of the work W, and displays the processed shape of the created work W on the display unit 22. . The middle fixing point setting unit 36 fixes the middle fixing point F (FIG. 5) to fix the core C (FIG. 3) to the work W at a point designated by the user by operating the input unit 20. In addition to the setting, the set magnetic fixing point F is displayed on the display unit 22. The NC program generation unit 38 generates an NC program in accordance with the machining shape of the created work W and the set core fixing point F. FIG.

In addition, the core C generate | occur | produces at the time of the sulfur processing (primary processing) of the workpiece | work W. When fixing the core C to the work W, in the main body 16 of the machine, the power applied to the wire electrode is different from the time of the work of the work W, and the component of the wire electrode is changed to the work W. It is attached to both between and core (C). Thereby, during the processing of the workpiece | work W, the core C does not fall out of the workpiece | work W, but after the completion | finish process of the primary, the core C is removed and the core C is removed from the workpiece | work W. Can be.

[Control flow]

2 is a flowchart showing a flow of a process performed in the process calculating unit 30. In step S1, the shape creation part 34 determines whether it is a process shape creation mode. When it is a workpiece shape creation mode, it transfers to step S2 and when it is not a workpiece shape creation mode, it transfers to step S3. The shape creation part 34 detects that a user clicks the mouse on the unworked process shape creation mode icon displayed on the display part 22, for example, and determines that it is a process shape creation mode.

In step S2, in the shape preparation part 34, the process shape of the workpiece | work W is created and it transfers to step S3. For example, a user designates a straight line, a curved line, or the like by clicking an icon not shown on the display unit 22 with a mouse. The user inputs a numerical value using the keyboard to designate the distance of a straight line, the radius of a curve, and the like. The shape creation part 34 creates the shape designated by the user as a process shape of the workpiece | work W. As shown in FIG. In addition, the shape creation part 34 creates the shape of the core C from the process shape of the created workpiece | work W. As shown in FIG. Moreover, the shape preparation part 34 calculates and outputs a control signal to the display part 22 so that the display part 22 may display the processed shape of the created workpiece | work W and the shape of the core C. The display part 22 displays the process shape of the workpiece | work W and the shape of the core C on the screen based on a control signal. FIG. 3: is a figure which shows the example of the process shape of the workpiece | work W displayed on the display part 22, and the shape of the core C. FIG. In the example of FIG. 3, two of a rectangular shape and a circular shape are created as a process shape of the workpiece | work W. As shown in FIG.

In step S3, the core fixing point setting part 36 determines whether it is the core fixing point setting mode. In the middle fixing point setting mode, the process proceeds to Step S4. In the middle fixing point setting mode, the process proceeds to Step S7. The middle fixing point setting unit 36 detects that the user clicks a mouse on the middle fixing point setting mode icon (not shown) displayed on the display unit 22, and determines that the middle fixing point setting mode is, for example. do.

In step S4, in the middle fixing point setting unit 36, the middle fixing distance is set, and the flow proceeds to step S5. The core fixing distance is the distance of the core fixing point F. As shown in FIG. The middle magnetic fixing point setting unit 36 sets, for example, the numerical value input by the user by operating the keyboard as the middle magnetic fixing distance. In this embodiment, the core fixation distance is set to 10 [mm].

In step S5, the middle fixation point setting part 36 sets the midpoint M of the middle fixation point F, and moves to step S6. The core fixing point setting part 36 sets the position which the user clicked on the cutting line L of the workpiece | work W displayed on the display part 22 as a midpoint M, for example. 4 is a diagram illustrating a state in which the midpoint M is set on the cut line L of the work W displayed on the display unit 22.

In step S6, in the middle fixing point setting unit 36, the middle fixing point F is set, and the flow proceeds to step S7. The middle fixing point setting part 36 sets the middle fixing point F in the middle fixing distance set in step S4 which contains the midpoint M as a shape along the cutting line L. As shown in FIG. FIG. 5: is a figure which shows the example which sets the core fixing point F on the cutting line L of the workpiece | work W displayed on the display part 22. FIG. In the example of FIG. 5, the middle fixing point F is set in the range of 5 [mm] before and behind the middle point M including the set middle point M. FIG.

In step S7, the NC program generation unit 38 determines whether or not it is in the NC program generation mode. In the NC program generation mode, the flow advances to step S8. In the non-NC program generation mode, the flow advances to step S1. The NC program generation unit 38 detects that the user clicks the mouse on the NC program generation mode icon (not shown) displayed on the display unit 22, and determines that the NC program generation mode is, for example.

In step S8, the NC program generation unit 38 generates an NC program and ends the processing. The NC program generation unit 38 generates an NC program based on the machining shape created in step S2 and the core fixation point F set in step S6.

FIG. 6: is a figure which shows the example of the display of the display part 22 of the state in which setting of the core fixing point F was complete | finished. As long as the user continues to select the middle fixation point setting mode, the determination of steps S1 and S7 is negated, and the processes of steps S3 to S6 are repeated. Thereby, as shown in FIG. 6, the some core fixation point F can be set.

[NC program]

As shown to the left of FIG. 6, FIG. 7A is an NC program which processes the workpiece | work W to square shape, and fixes the core C to the workpiece | work W. FIG. FIG. 7: B is NC program which processes the workpiece | work W to circular shape, and fixes the core C to the workpiece | work W as shown to the right side of FIG. In the NC program shown in FIG. 7A and FIG. 7B, a command for fixing the core C of the underlined line to the work W is added to a command for processing the work W into a work shape.

As shown to FIG. 7A and FIG. 7B, in NC program, the instruction | command which designates the starting position of the core fixing point F is described, and then specifies the distance of the core fixing point F from a starting position. The instruction is described.

[Effect]

The CAM which produces | generates an NC program according to the machining shape of the workpiece | work W inputted by a user is used by many users conventionally. However, the CAM which can add a command to fix the core to the NC program is not common yet, and the user directly edits the NC program generated according to the machining shape of the workpiece W to perform the fixation of the core. In many cases, instructions are added.

In order to add a command for core fixing, first, the user needs to decode the NC program generated by the CAM according to the machining shape of the workpiece W, and find a row to which the command for fixing the core is to be added. Thereafter, the user edits the NC program to add a command for specifying the start position of the core fixing point F and a command for specifying the distance of the core fixing point F from the start position. When the machining shape of the workpiece | work W became complicated, the NC program produced | generated by CAM became magnificent, and it was burdensome for a user to find the row which adds the instruction | command of the middle character fixing. Moreover, in order to add the instruction | command which designates the starting position of the core fixing point F, a user must obtain | require the coordinate value of the starting position of the core fixing point F. As shown in FIG. Even if the machining shape is a relatively simple circular shape, as shown in the third or sixth row of the NC program of FIG. 7B, the coordinate value of the starting position of the core fixing point F needs to be calculated using a trigonometric function or the like, and the coordinate value. It was also a burden on the user to obtain.

In order to reduce the burden on a user, it has conventionally been proposed to automatically obtain the core fixation point (F). For example, the center of gravity and the weight are calculated from the shape of the core C, and the core fixing point F is calculated | required based on the calculated center of gravity and the weight of the core C. For example, as shown in FIG. However, if the core fixation point F is set at a point where the work shape of the work W is complicated, and the core C is dropped, a part of the work W may be missing if the core C is impacted. There was.

Moreover, although the middle magnetic fixing point F is designated by the user, what is intended to reduce the burden of the designation is proposed. For example, the element of the process shape which sets the core fixation point F is selected, and the distance from the reference point to the start point of the core fixation point F, and a start point are made based on the weak point of one selected element. By specifying a distance from the core, there is a setting of the core fixing point F. However, when setting the core fixation point F over two or more elements of a process shape, it was necessary to repeat the operation which designates the core fixation point F for every element, and it was not enough for a user's burden reduction. .

Therefore, in this embodiment, the core fixing point setting part 36 is on the cutting line L between the workpiece | work W displayed on the display part 22 and the core C by the user operating the input part 20. FIG. Sets the specified position as the midpoint (M). And the core fixation point setting part 36 sets the core fixation point F in the set middle fixation distance containing the middle point M. As shown in FIG. The NC program generation unit 38 generates an NC program at the core fixing point F to fix the core C to the work W. As shown in FIG.

In this way, the user can set the core fixing point F at any position on the cutting line L only by designating the position to be the midpoint M, and perform the core fixing at the core fixing point F. It is possible to generate an NC program. Accordingly, the core fixing point F can be easily set at an appropriate point, and the burden on the user can be reduced.

In addition, since the midpoint M specified by the user on the cutting line L becomes the midpoint of the core fixing point F, the user can designate the core fixing point F without considering the machining direction on the cutting line L. have.

[2nd Embodiment]

In 2nd Embodiment, the designation method of the midpoint M of the core fixing point F by a user differs from 1st Embodiment.

[Control flow]

8 is a flowchart showing a flow of processing performed in the processing calculating section 30. In step S11, the shape creation part 34 determines whether it is a process shape creation mode. In the case of the work shape creation mode, the flow advances to step S12, and in the case of the work shape creation mode, the flow advances to step S13.

In step S12, in the shape preparation part 34, the process shape of the workpiece | work W is created and it transfers to step S13.

In step S13, the core fixing point setting part 36 determines whether it is the core fixing point setting mode. In the middle fixing point setting mode, the process proceeds to Step S14. In the middle fixing point setting mode, the process proceeds to Step S17.

In step S14, in the core fixing point setting part 36, the viewpoint S of the core fixing point F is set, and it progresses to step S15. The core fixing point setting part 36 sets the position which the user clicked on the cutting line L of the workpiece | work W displayed on the display part 22 as a viewpoint S by operating a mouse.

In step S15, in the middle fixing point setting part 36, the end point E of the middle fixing point F is set, and the flow proceeds to step S16. After the viewpoint S is set, the core fixed point setting part 36 operates the mouse, and makes the position which clicked on the cutting line L of the workpiece | work W displayed on the display part 22 as an end point E. Set it. FIG. 9: is a figure which shows the state where the viewpoint S and the end point E were set on the cutting line L of the workpiece | work W displayed on the display part 22. FIG.

In step S16, in the middle fixing point setting unit 36, the middle fixing point F is set, and the flow proceeds to step S17. The middle fixing point F is set between the start point S and the end point E. FIG. FIG. 10: is a figure which shows the example which sets the core fixing point F on the cutting line L of the workpiece | work W displayed on the display part 22. FIG.

In step S17, the NC program generation unit 38 determines whether or not it is in the NC program generation mode. In the NC program generation mode, the flow advances to step S18. In the non-NC program generation mode, the flow advances to step S11.

In step S18, the NC program generation unit 38 generates an NC program and ends the processing. The NC program generation unit 38 generates an NC program based on the machining shape created in step S12 and the core fixing point F set in step S16.

FIG. 11: is a figure which shows the example of the display of the display part 22 of the state which the setting of the core fixing point F was complete | finished. As long as the user continues to select the middle fixation point setting mode, the determination of steps S11 and S17 is denied, so the processes of steps S13 to S16 are repeated. Thereby, as shown in FIG. 11, several middle magnetic fixing point F can be set.

[Effect]

In the present embodiment, the core fixing point setting unit 36 sets the starting point S and the end point E of two points designated by the user on the cutting line L by operating the input unit 20, and the starting point S. And the end point (E) are set as the middle fixing point (F). In the NC program generating unit 38, the NC program is generated at the core fixing point F to fix the core C to the work W. FIG. In this way, the user can set the core fixing point F at any position on the cutting line L only by designating the positions serving as the starting point S and the end point E, and at the core fixing point F. In this way, it is possible to generate an NC program that performs the core fixation, thereby reducing the burden on the user.

[Third Embodiment]

In the third embodiment, when the core fixation point F is set for one core C, the core fixation point F 'is set at a corresponding position also for other cores C' having a similar shape. It was.

FIG. 12: is a figure which shows the example of the display of the display part 22 of the state which the setting of the core fixing point F was complete | finished. The shape of the middle core C on the left side and the shape of the middle core C 'on the right side are different in size but similar in shape to each other. The middle magnetic fixing point setting part 36 sets the position which the user designated using the input part 20 as the middle point M on the cut line L of the middle core C of the left side of FIG. 12, for example. do. And the core fixing point setting part 36 sets the core fixing point F before and after the middle point M. As shown in FIG. Thereafter, the core fixation point setting unit 36 corresponds to the core fixation point F of the middle core C on the left side on the cutting line L 'of the middle core C' on the right side in FIG. 12. Set the middle fixing point (F ') at.

[Effect]

In the present embodiment, the core fixing point setting unit 36 sets the position designated by the user on the cut line L of one core C using the input unit 20 as the middle point M, and the middle point. The middle magnetic fixing point F is set before and after (M). In addition, in the middle C 'similar to the middle C where the middle point C is set, the middle fixing point setting unit 36 has a middle fixing point F of the middle C in which the middle point M is set. Set the middle magnetic fixing point (F ') at the point corresponding to). Thus, when there are a plurality of cores C having a similar shape, the user only specifies a position to be the center point M with respect to one core C, and automatically locks the core with respect to the other core C '. Since the point F 'is set, the burden on the user can be reduced.

[Other Embodiments]

As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It goes without saying that it is possible to add various changes or improvement to the said embodiment. It is clear from description of a claim that the form which added such a change or improvement can also be included in the technical scope of this invention.

In 1st Embodiment, the user operated the mouse and set the position clicked on the cutting line L of the workpiece | work W displayed on the display part 22 as the midpoint M of the core fixing point F. As shown in FIG. What is necessary is just to set the middle magnetic fixing point F to the area | region containing the position which the user clicked on the cutting line L of the workpiece | work W displayed on the display part 22 by operating a mouse, and fixed the position which the user clicked. It is not necessary to make it the midpoint of the point F. In addition, the position clicked by the user may be a disadvantage, that is, a starting point or an end point of the core fixing point F. FIG.

[Technical Ideas Obtained from Embodiments]

The technical idea grasped | ascertained from the said embodiment is described below.

A program generating device (10) for generating a program for controlling a wire discharge processing machine (12), comprising: a display unit (22) for displaying on a screen a machining shape of a workpiece (W) input by an operation of an input unit (20) of a user; On the cutting line L between the work W and the core C generated by the work of the work W on the display portion 22 on which the work shape of the work W is displayed. A middle fixing point setting unit 36 for setting a predetermined range including a point designated by the operation of the input unit 20 to a middle fixing point F for fixing the middle C to the work W; The workpiece W is processed on the basis of the input work shape of the workpiece W, and the core C is fixed to the workpiece W at the set core fixing point F. FIG. To control the wire discharge machine 12 to And a program generator 38 for generating a program. In this way, the user can set the core fixing point F at any position on the cutting line L only by designating the position on the cutting line L, and the core fixing is performed at the middle fixing point F. It is possible to create a program, which can reduce the burden on the user.

As the program generating device 10, the core fixing point setting unit 36 sets the point designated by the operation of the input unit 20 of the user on the cutting line L as the center point M, The core fixation point F which fixes the said core C to the said workpiece | work W is set to the point which makes the said intermediate point M the intermediate point. Thereby, since the position which the user designated on the cutting line L becomes the intermediate point of the core fixing point F, the user can designate the core fixing point F without considering the machining direction on the cutting line L. As shown in FIG.

As the program generating device 10, the core fixing point setting unit 36 sets the point designated by the operation of the input unit 20 of the user on the cutting line L as the viewpoint S. The core fixing point F which fixes the core C to the said workpiece | work W is set. Thereby, the user can set the core fixing point F which makes arbitrary positions on the cutting line L as a starting point only by designating the position on the cutting line L, and also fixed the core in the middle fixing point F. It is possible to create a program that implements this, which can reduce the burden on the user.

As the program generating device 10, the core fixing point setting unit 36 sets the point designated by the operation of the input unit 20 of the user on the cutting line L as the end point E. The core fixing point F which fixes the core C to the said workpiece | work W is set. Thereby, the user can set the core fixing point F which makes arbitrary positions on the cutting line L the end only by designating the position on the cutting line L, and also the core fixing at the middle fixing point F. It is possible to create a program that implements this, which can reduce the burden on the user.

As the program generating device 10, the core fixing point setting unit 36 sets the distance designated by the operation of the input unit 20 of the user as the core fixing distance, and the core along the cutting line L. You may set the inside of a fixed distance as said middle fixing point F. FIG. In this way, the middle fixing point F can be easily set as the middle fixing distance by the user-specified distance, and the distance of the middle fixing point F can be arbitrarily set.

As the program generating device 10, the core fixing point setting unit 36 sets a line on the cutting line L between two points designated by an operation of the input unit 20 of the user, to the middle fixing point. It is good also as (F). In this way, the user can set the core fixing point F at an arbitrary position on the cutting line L only by specifying two points, and generate a program for performing the core fixing at the middle fixing point F. It becomes possible to reduce the burden on a user.

As the program generating device 10, when the core fixing point setting unit 36 has another core C similar in shape to one core C, the work W and the other core C ) And the position corresponding to the said core fixing point F set on the process line L between the said workpiece | work W and the said one core C as said on the process line L between You may set as the middle fixing point F of (C). Thus, when there are a plurality of cores C having a similar shape, the user only sets the position for one core C, and since the core fixing point F is automatically set for the other core C, The burden on the user can be reduced.

Claims (14)

A program generating device for generating a program for controlling a wire discharge machine,
A display unit for displaying the machining shape of the workpiece input by the user's input unit;
On the display portion on which the machining shape of the workpiece is displayed, the processing line is mainly focused on a point designated by the operation of the input unit of the user on a machining line between the workpiece and a middle character generated by machining of the workpiece. A middle magnetic fixing point setting unit for setting a middle magnetic fixing point for fixing the middle core to the work in a part of the image to a point including the middle point and having a middle magnetic fixing distance before and after the middle point;
And a program generation unit for processing the workpiece based on the input machining shape of the workpiece and generating a program for controlling the wire discharge machine so that the core is fixed to the workpiece at the set core fixing point. Program generating device. The method of claim 1,
And the core fixing point setting unit sets the distance designated by the user's manipulation of the input unit as the middle fixing distance, and sets the inside of the middle fixing distance along the cutting line as the middle fixing point. The method according to claim 1 or 2,
The said core fixation point setting part sets the said core fixation set on the overhead line between the said workpiece | work and the said one middle core as a workpiece | work line between the said workpiece | work and the said other core when there exists another core similar in shape to one core. And a position corresponding to the point is set as the middle fixation point of the other core. delete delete delete delete delete delete delete delete delete delete delete

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